Rectangular to round duct adapter 100x100 mm to 125 mm – ventilation duct transition, socket/spigot

A transition from a 100 × 100 mm rectangular duct to a 125 mm round duct: one end rectangular, the other round. It connects a flat duct to a round fan, hood stub or duct and works in either direction. Socket on the rectangular end, spigot on the round end. **Picture 1:** multi-view drawing with all dimensions and cross-sections. **Picture 2:** the part as a render. **Picture 3:** a section view. ## Dimensions (mm, measured on the CAD solid) | Dimension | Value | |---|---| | Nominal size, rectan…

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